// File:     Cells.java
// Location: Java/GoldTile/src/goldtile
// Purpose:  Cells class for the Gold Tile Game
/**
 * @author Stephen Gold
 */
// (c) Copyright 2012 Stephen Gold
// Distributed under the terms of the GNU General Public License

/*
This file is part of the Gold Tile Game.

The Gold Tile Game is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by the
Free Software Foundation, either version 3 of the License, or (at your
option) any later version.

The Gold Tile Game is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with the Gold Tile Game.  If not, see <http://www.gnu.org/licenses/>.
*/

package goldtile;

public class Cells
    extends java.util.TreeSet< Cell >
{
    // constants
    private static final String PREFIX = "cells{";
    private static final String SEPARATOR = " ";
    private static final String SUFFIX = "}";

    // constructors

    public Cells() {
        super();
    }

    // construct a set containing a single cell
    public Cells(Cell cell) {
        super();

        final boolean success = add(cell);
        assert success : cell;
    }

    public Cells(Cells other) {
        super(other);
    }

    // methods

    public boolean isAnyStart() {
        for (Cell cell : this) {
            if (cell.isStart()) {
                return true;
            }
        }

        return false;
    }
}
